Saw vise



July 23, 1929. D. H. PRUTTON SAW VISE Filed April 25. 1927 2 Sheets-Sheet July 23, 1929. D. H. PRUTTON 1,721,834

SAW VISE Filed April 25, 1927 2 Sheets- Sheet 2 i l I I l l Patented July 23, 1929.

STATES DANIEL I-I. rnurrou, or CLEVELAND, 01110.

SAW vise.

Application filed April 25, 1927. Serial No. 186,439.

This invention relates to improvements in clamps or vises for holding saws during the operation of sharpening the same, and has for its object the provision of a simple and improved saw clamp or vise having its major portions stamped from sheet metal in one piece, so that the structure is not only eflicient and durable but can be formed at an exceedingly low cost.

Further objects of the invention are in part obvious and in part will appear more in detail hereinafter.

Referring to the drawings, which represent one suitable embodiment of the invention, Fig. 1 is a side elevation of my improved structure, applied to a. bench and showing a saw clamped in place; Fig. 2 is a plan view thereof; Fig. 3 is a cross-sectional view on the line 33, Fig. 1; and F ig. 4: is a stamped out sheet metal blank which includes the major portions of the structure.

The vise or clamp illustrated in the drawings includes a rectangular base portion 1 provided at each of its'two shorter side edges 2 with an upwardly extending, vertically disposed bracket 3 of substantially inverted U- shape in side elevation. The forward arms 4 of said brackets lie to the front of said base portion and extend below the same, as clearly indicated in Fig. 3. At its front side edge 5, said base portion is provided with a depending skirt or apron portion 6 which constitutes the fixed j aw of the clamp or vise, as will later appear.

The vise portions so far referred to, to wit, the base portion 1, the two end brackets 3, and the skirt or apron portion 6, are formed and remain in one piece, being stamped from a single sheet metal strip, the stamped out blank forming these parts being shown in Fig. 4. In order to permit the forward arms 4 of the end brackets 3 to be made the desired length, the apron or skirt portion 6 does not extend the entire length of the base portion 1, but the two lower or outer corners of said skirt or apron portion are cut away, as clearly indicated at 8, Fig. 4.

Riveted or otherwise suitably secured tothe inner surface of the depending apron or skirt portion 6 at substantially the middle thereof is the upper end of the vertically disposed portion 10 of a channel shaped bench clamp arm, the lower horizontal portion 11 of which extends rearwardly and carries a vertically disposed clamping screw 12. Said screw is provided at its upper end with the usual wood end portion 13 for engagement with the bottom of a bench 15 and at its lower end with a suitable operating rod or handle 16. By said clamping means, the base portion .1 of the vise may be clamped upon the top of the bench 15, with the depending portion 10 of the clamping arm engaging the front end of the bench, as clearly indicated in Fig. 3.

The lower end portions of the forward arms 4 of the end brackets 3 are each provided with a suitable aperture 18 to receive the eccentrically arranged trunnions 19 of a roller 20 which constitutes the movable jaw of the clamp or vise. Said roller extends the full width of the base portion 1 and is provided with a substantially radially extending operating handle 22 having its inner end secured to said roller at substantially the middle thereof. If desired, said roller may be provided with a cover of rubber or the like for frictionally engaging the saw blade and serving to absorb the vibrations thereof during the sharpening operation.

\Vhen the roller 20 is in the dotted line position, Fig. 3, the saw blade 25, with the teeth thereof uppermost, may be readily positioned in thealigned slots 26 of the brackets 3 between the depending apron or skirt portion 6 and the roller 20. By counter-clockwise movement of the roller handle 22, the roller 20 may be brought into engagement with the saw blade to firmly clamp the same against the skirt or apron portion 6, as indicated in full lines, Fig. 3. To release the saw blade, it is only necessary to turn the handle 22 in the reverse direction, as will be readily understood.

In order to provide a more rigid structure, the end brackets 3 may be provided with outwardly or inwardly pressed, inverted U- shaped portions 28 (outwardly as shown), and the base portion 1 may be provided near its front side edge 5 with a longitudinally disposed upwardly or downwardly pressed portion 29 (downwardly as shown) which may or may not connect the pressed out'portions 28 of the brackets 3, the former arrange ment being here shown.

It will thus be seen that I have provided a saw clamp or vise which is not only strong and durable and eflicient in action, but one which is also extremely simple in construcfront of the edge of said support and form a jaw abutment, the end portions ofthe sheet metal frame being bent upwardly along lines normal to said line of fold and each having an open, saw-receiving slot forwardly of the plane of said apron portion, thereby forming hook shaped frame end portions, the free ends of said end portions terminating at avpoint below the plane of said base portion at the level of said apron portion, and a-movable jaw member carried by the free ends of said frame end portions and adapted for cooperation with said apron portion in clamping a saw therebetween. a

2. A ,saw vise, comprising a one-piece sheet metal frame having a plain base portion adapted to rest upon the surface of a support,

a depending apron portion joined thereto along a line of fold and adapted to lie in front of the edge of said support and form a jaw abutment, the end portions of the sheet metal frame being bent upwardly along lines I normal to said line of fold and each having an open, saw-receiving slot forwardly of the plane of said apron portion,thereby forming hook shaped frame end portions, the free' ends of said end portions terminating at .a point below the plane of said base portion at the level ofsaid apron portion, said base portion having a re-enforcing depression adjacent said 1 line of fold and substantially parallel therewith and adapted to engage the front edge of said support for positioning purposes, and a movable jaw member carried by the free ends of said frame end portions and adapted for cooperation with said apron portion in clamping a saw therebetween.

3. A saw vise, comprising a onepiece sheet metal frame having a plain base portion adapted to rest upon the surface of a support,

plane of said apron portion, thereby forming hook shaped frame end portions, the free ends'of said end'portions terminating at a point below the plane of said base portionat the level of saidapron portion, said base portion having a re-enforcing depression adjacent and substantially parallel to said line of fold and adapted to engage the edge of said support to position the vise thereon, each of said end portions being provided with a reenforcing depression following the general outline or configuration thereof and having its lower end merging into the depression of said base portion, and a movable aw member carried by the free ends of said frame end portions and adapted for cooperation with said apron portion in clamping a saw therebetween. p

4. A saw vise, comprising a one-piece sheet metal frame having a plain base portion adapted to rest upon the surface of a support,

a depending apron portion joined thereto along a' line of fold and adapted to lie in front of the edgeof said support and form a jaw abutment, parts of the ends of said apron portion being cut away, the end portions of the sheet metal frame being bent upwardly along lines normal to said line of fold and each having an open, saw-receiving slotforwardly of the plane of saidapron portion, thereby form ing hook shaped frame end portions, the free ends of said end portions terminating at a point below the plane of said base portion at the'level of said apron portion, and a movable jaw member carried by the free ends of said frame end portions and adapted for cooperation with said apron in clamping a saw therebetween.

In testimony whereof I hereby afiiX my signature.

DANIEL H. PRUTTON. 

